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Bags of portland cement wrapped and stacked on a pallet. Blue Circle Southern Cement works near Berrima, New South Wales, Australia.. Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout.
Ethiopia has 20 cement factories which produce mainly OPC and PPC cement. Two other cement factories are in the pipeline. As of 2017, production capacity in Ethiopian, according to the Ethiopian Reporter, [14] has increased to 15 million tonnes per year, but local consumption is only 6 million tonnes per year.
PPC Ltd, a supplier of cement, lime (material) and related products in southern Africa. It has 11 cement factories and a lime manufacturing facility in six African countries including South Africa, Botswana, Democratic Republic of the Congo, Ethiopia, Rwanda and Zimbabwe. The company is headquartered in Sandton (Johannesburg). [1]
A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete. Concrete is the most ...
Before November 2023, Cimerwa Cement Limited operated as a 51 percent subsidiary of Pretoria Portland Cement Company (PPC Limited), a South African cement-manufacturing conglomerate, whose shares of stock are traded on the Johannesburg Stock Exchange. [5] The table below illustrates the shareholding in the company, as of June 2019. [6]
Blue Circle Industries was a British public company manufacturing cement. [1] It was founded in 1900 as the Associated Portland Cement Manufacturers Ltd. through the fusion of 24 cement works, mostly around on the Thames and Medway estuaries, together having around a 70% market share of the British cement market.
Portland cement is usually made from cheap, quarried raw materials, and these usually contain substantial amounts of Cr, Mn and Fe. For example, limestones used in cement manufacture usually contain 0.3-1% Fe 2 O 3, whereas levels below 0.1% are sought in limestones for white manufacture. Typical clays used in gray cement rawmix may contain 5 ...
UltraTech Cement Limited is an Indian multinational cement company based in Mumbai. It is the largest manufacturer of grey cement, ready-mix concrete (RMC) and white cement in India and 5th largest around the globe with an installed capacity of 152.70 million tonnes per annum and 119 million tonnes per annum sales volume.